Brown Sugar Baked Peaches. 1 fresh peach 1 tsp. unsalted butter, divided 2 to 4 tsp. brown sugar, divided Sprinkling of ground cinnamon, to taste Directions 1. Halve peaches and remove pit. Place in baking dish, skin side down. 2. Place 1/2 teaspoon butter in the hollow of each peach, top each peach half with 1 or 2 teaspoons brown sugar, and sprinkle with cinnamon. 3. Bake at 375 degrees until peaches are tender, about 30 minutes. Serve warm.